"Sleeping Monster" - Bailey finds herself at the center of a CDC investigation surrounding the death of several of her patients, as Jackson and the rest of the board members argue over how to address the crisis with the public. Meanwhile, Cristina teases Alex about his unspoken feelings for Jo, and Owen continues to take special care of Ethan as the condition of his parents remains uncertain, on "Grey's Anatomy," THURSDAY, APRIL 25 (9:00-10:02 p.m., ET) on the ABC Television Network.